I replaced the compressor and the receiver/dyer (aftermarket), refilled the system and the a/c doesn't turn in. The A/C light on the dash turns on, there is power. I remember when I replaced the condenser in my other Vue there was some kind of trick to get it to turn on. Any help would be appreciated. The Vue is a 04 V6.

Last edited by Bear; 04-28-2011 at 11:01 AM..

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Although what follows doesn't prevent any compressor from running once a system is filled with R134a, was this system properly evacuated after the replacement or was this simply recharged? And how much was put in?

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Although what follows doesn't prevent any compressor from running once a system is filled with R134a, was this system properly evacuated after the replacement or was this simply recharged? And how much was put in?

It was evac'd completely. 16.2oz

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Check the main a/c fuse then the compressor relay (for swapping if necessary). I don't think you can wire a bypass on the pressure switch connector (if that's what you're describing). All you can do is check the main fuse, relay, and measure for 12v on the compressor connector.

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I replaced the compressor and the receiver/dyer (aftermarket), refilled the system and the a/c doesn't turn in. The A/C light on the dash turns on, there is power. I remember when I replaced the condenser in my other Vue there was some kind of trick to get it to turn on. Any help would be appreciated. The Vue is a 04 V6.

1. Was the a/c working, at least was the old compressor turning on before you changed it out?

2 When you press the a/c button on the dash, you say the little light comes on. Do the radiator fans come on? I have an 07 Vue with two fans at the radiator, does the 04 have two? Both fans come on when the a/c button is pressed on mine.

My a/c was not working recently. The light would come on when the a/c button was pressed, both radiator fans would come on but the compressor would not engage.

It turns out the 40 pin connector near the foot well on the drivers side had the problem. The purple wire on the plug came loose. After reconnecting that everything worked fine. Just a thought, check that out...... Good Luck

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1. Was the a/c working, at least was the old compressor turning on before you changed it out?

2 When you press the a/c button on the dash, you say the little light comes on. Do the radiator fans come on? I have an 07 Vue with two fans at the radiator, does the 04 have two? Both fans come on when the a/c button is pressed on mine.

My a/c was not working recently. The light would come on when the a/c button was pressed, both radiator fans would come on but the compressor would not engage.

It turns out the 40 pin connector near the foot well on the drivers side had the problem. The purple wire on the plug came loose. After reconnecting that everything worked fine. Just a thought, check that out...... Good Luck

The A/C was working, but the compressor was leaking and it was starting to take a little longer to get the car cool. Both fans do turn on. The compressor clutch doesn't spin.

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The A/C was working, but the compressor was leaking and it was starting to take a little longer to get the car cool. Both fans do turn on. The compressor clutch doesn't spin.

Do you have an multimeter?

You could check for +12 on vehicle side of two pin connector on compressor clutch (with HVAC configured for AC operation).

If voltage is present - unplug connector from compressor, set meter for resistance - measure between two pins on compressor-clutch connector for continuity ... you'll see a few ohms if good.

If you read an open between the two pins you might have a problem with the compressor thermal protect switch (TPS). This switch is not depicted on drawings but if open - or not installed - will prevent +12 from reaching compressor clutch. Or, worse-case - the clutch winding might be open.

You could check for +12 on vehicle side of two pin connector on compressor clutch (with HVAC configured for AC operation).

If voltage is present - unplug connector from compressor, set meter for resistance - measure between two pins on compressor-clutch connector for continuity ... you'll see a few ohms if good.

If you read an open between the two pins you might have a problem with the compressor thermal protect switch (TPS). This switch is not depicted on drawings but if open - or not installed - will prevent +12 from reaching compressor clutch. Or, worse-case - the clutch winding might be open.

A/C is working great now. It is kind of weird though,it is working with the A/C diode out of the fuse box. With the diode in, nothing. Weird but, hey it is working. Thanks everyone for your help.

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